Physics, 25.03.2020 04:35 khalaflaf9381
A 2.98 X 102-kg crate is being pulled across a horizontal surface by a force F which makes an angle of 35.90 above the horizontal. Suppose that the coefficient of kinetic friction is 0.222, what should the magnitude of F be so that the net work done by it and the kinetic frictional force is zero?
Answers: 1
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Physics, 22.06.2019 11:00
Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good
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Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
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Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
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A 2.98 X 102-kg crate is being pulled across a horizontal surface by a force F which makes an angle...
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